Describes the content metadata standard used by the Marine Realms Information Bank, a distributed geolibrary that catalogues and provides access to information about marine, coastal, and lake environments.

Links to standards prepared under the National Mapping Program to produce and maintain top quality mapping and geospatial data products. Documents may be viewed and downloaded in PDF and HTML formats with links to related information.

Site to obtain currently available geochemical reference materials, certificates for reference materials no longer available, reference materials in production, and order and processing information. Some documents in PDF format.

Branch of Quality Systems monitors the consistent collection and reporting of water-quality data with documentation of field and laboratory methods and proficiency testing. Links to standard reference samples and quality assurance standards.